package datastructure;

public class TreeNode {
	public TreeNode left;
	public TreeNode right;
	public int data;
	public int val;
	public String key;
	
	public TreeNode() {
		this.left = null;
		this.right = null;
		this.data = 0;
		this.key = null;
		
	}

	public TreeNode(int data) {
		this.data = data;
		this.val = data;
	}

}
